The TABER® Rotary Platform Abrasion Tester - Model 1700
/ 1750 is commonly referred to as the Taber Abraser
(Abrader) or Rotary Platform Dual (Double) Head Tester.
First introduced in the 1930's, this precision built
instrument was developed to perform accelerated wear
testing. Capable of providing reliable data in a matter
of minutes compared to the years that may be required
by in-use testing, the Taber Abraser (Abrader) rapidly
became the world standard for evaluating abrasion
resistance.
Since its inception, the Taber Abraser has been used
for quality & process control, research & development
and material evaluation. Used to test a wide spectrum
of materials, the instrument has been referenced in
numerous standards and specifications (including
plastics, coatings, laminates, leather, paper,
ceramics, carpeting, safety glazing, etc.).
Description
Taber tests involve mounting a flat specimen
approximately 100mm square or round to a turntable
platform that rotates on a vertical axis at a fixed
speed. The standard material thickness that can be
evaluated with the Taber Rotary Abraser is 6.35 mm
(materials greater than 6.35 mm but less than 40 mm can
be tested with optional accessories). Two genuine Taber
abrasive wheels, which are applied at a specific
pressure, are lowered onto the specimen
surface.
Characteristic rub-wear action is produced by contact
of the test specimen against the sliding rotation of
the two abrading wheels. As the turntable rotates, the
wheels are driven by the sample in opposite directions
about a horizontal axis displaced tangentially from the
axis of the sample. One abrading wheel rubs the
specimen outward toward the periphery and the other,
inward toward the center while a vacuum system removes
loose debris during the test. The wheels traverse a
complete circle on the specimen surface, revealing
abrasion resistance at all angles relative to the weave
or grain of the material. The resulting abrasion marks
form a pattern of crossed arcs in a circular band that
cover an area approximately 30 cm2.
Each turntable has dual abrading arms that are
precision balanced. Independently operated, the
abrading arms can be raised (or lowered) to mount or
inspect specimens. Each arm is precision balanced and
will apply a load of 250 grams against the specimen,
exclusive of the weight of the wheel. To increase the
load to 500 or 1000 grams, a mount for auxiliary
weights is located on the outside of the abrading wheel
bearing assembly. This location ensures that weights
are concentric with the abrading wheel. An optional
counterweight kit is available for the Model 1700/1750
to reduce the load. For older style Taber Abrasers, a
stud on the rear end of the abrading arm is used to
carry an optional counterweight. All models use
counterweights to reduce the load by 50, 125, 150 or
175 grams.
Taber Abrasers Model 1700 or 1750 offer the following
standard features:
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Specimen
turntable speed control allows options of both 60 rpm
and 72 rpm.
-
Easy-to-use LCD operator touch screen interface with
selectable display options (including language
selection).
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A vacuum system is included and is critical for the
proper operation of the instrument. The direct flow
vacuum nozzle is hinged to an adjustable mount at the
rear of the housing. The nozzle includes two 8mm
diameter orifice screw-in nozzle tips (11mm are sold
separately). A precision vacuum nozzle adjustment
control allows the height to be modified for
accommodating varying specimen
thickness.
-
Compact abraser arm assemblies provide a standard
load of 250 gram on the wheel. Using the auxiliary
weights, standard wheel loads of 500 or 1000 grams
can be obtained. Please note, the markings on the
auxiliary weights are NOT reflective of the actual
mass of the additional weight. The auxiliary weights
are marked with the TOTAL load that will be exerted
on the wheel and equals the combined mass of the
abraser arm and auxiliary weights. The weight marked
500 gram is actually 250 grams and the weight marked
1000 gram is actually 750 grams.
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A Quick Release Mounting Hub permits quick wheel
mounting without the need of a locking nut, resulting
in increased clearance for the vacuum pick-up nozzle
and a larger viewing area for the test specimen. A
spring loaded, beveled retaining nut provides a
positive locking force on the wheel hub retaining lip
making certain that the wheels remain securely
fastened until disengaged.
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Each specimen table includes an independent support
frame to which the abraser arm and nozzle assemblies
are affixed.